Sad my jeep keeps failing me

Maybe @Wranglerfix would know if this is PCM failure. The 05’s are notoriously prone…

JMT said:

Maybe @Wranglerfix would know if this is PCM failure. The 05’s are notoriously prone…

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Automatic-2005?pretty much sums it up.

finsfan07 said:

So recently I posted that my automatic 2005 Jeep Wrangler TJ Rubicon 4.0 catalytic converter were clogged (my mechanic shop diagnose it)
Anyways I ended up removing them and that driving it, besides it sounding obnoxious and smelly it drove great. My issue with it not being able to push past 50 mph was gone. So I bought and installed new cats last week. A lot of the codes left but I kept seeing two p0841 and p0700. But the Jeep was driving great no issues, I had plan to work on those codes later.

Anyways come today I drove on the highway 70 mph no problem. But when I was driving back home hopping onto the highway I guess you could say i pushed the acceleration quickly to try to merge in.. anyways all of a sudden I lose power at about 40 mph. It won't go past it and it's making a noise similar to a paintball gun shooting, every like second it seems to be shooting out air from what it sounded like. I pull over and see the entire catalytic converter setup is still good. It seems to be working good.

I turned the Jeep off and immediately turn it back on and my jeep goes back to normal just like that. Sadly as I get back home the same symptoms come back and I have to drive back slowly.

I pull codes and got 7
1. P0016
2. P0700
3. P1776
4. P0841
Then they kinda repeat themselves all but one
5. P0016
6. P0700
7. P0841

Anyways I ordered a new crankshaft position sensor. A new TPS sensor. And lastly crown OPDA that comes with the cam sensor.
Do you guys think that will fix it?

Or is my transmission going bad or maybe PCM?

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Do you have enough fluid in your auto? This thread talks about the p1776

The p0016 looks like it could mean the cam/crank aren’t in sync. I solved that issue by reading a helpful thread here and using this device which provides the data u need. To adjust, just loosen the OPDA clamp and then slightly turn it till u get to near zero. I last set mine to 0.30 degrees. The device will also say that it’s in sync or out of sync. I can’t recommend that device enough and to use that thread as a guide.

Also, you want to keep the original cam sensor when changing to the Crown unit. The Crown cam sensor failed on me but I also didn’t have the device at the time to know if adjusting the cam/crank difference would have made the Crown sensor ok to use. The original sensor is installed now and the Napa Echilin sensor worked well for me, so now it’s my spare.

I believe the po700 is a general code that tells u that u you are in limp mode, which would explain why you can’t go fast (you are likely in a lower gear).

It’s possible that you have a solenoid pack issue, but I wouldn’t jump to that conclusion yet. Check fluid first. I’d then look to the PCM before looking to the valve body and solenoid pack.

Looks like the po841 could be your PCM/TCM or the solenoid pack or valve body. I’d start with the PCM if it were me since the Wranglerfix PCM solved issues with my Jeep that I didn’t know were PCM related (e.g., people sometimes have heat soak or misfire related issues that the WF PCM solves). I was one of those ppl who had both issues until making the switch.

Feel free to reach out if you have any questions. Mark @Wranglerfix is the guy to talk to about this stuff.

Signal sent.

@finsfan07 Your pcm has failed you...The P0016 is a cam, crank and OPDA alignment issue. Which brand opda do you have? You can call me to discuss in further detail if you'd like. 866-888-7710.

Don't be sad about your Jeep. You are driving a 19 year old vehicle on the highway and expect like-new performance. You can get it, but you have to remember that stuff wears out and must be maintained. Jeeps (and everyother vehicle) are not designed to run for 20 years. When I was in that biz, the design goal was 10 years maximum. Now, you not only own a 19 year old vehicle that needs some love, but you own a Jeep that most males (and quite a few females) in America would love to own. So cheer up. It's fixable, it just takes a little time and money.

finsfan07 said:

So recently I posted that my automatic 2005 Jeep Wrangler TJ Rubicon 4.0 catalytic converter were clogged (my mechanic shop diagnose it)
Anyways I ended up removing them and that driving it, besides it sounding obnoxious and smelly it drove great. My issue with it not being able to push past 50 mph was gone. So I bought and installed new cats last week. A lot of the codes left but I kept seeing two p0841 and p0700. But the Jeep was driving great no issues, I had plan to work on those codes later.

Anyways come today I drove on the highway 70 mph no problem. But when I was driving back home hopping onto the highway I guess you could say i pushed the acceleration quickly to try to merge in.. anyways all of a sudden I lose power at about 40 mph. It won't go past it and it's making a noise similar to a paintball gun shooting, every like second it seems to be shooting out air from what it sounded like. I pull over and see the entire catalytic converter setup is still good. It seems to be working good.

I turned the Jeep off and immediately turn it back on and my jeep goes back to normal just like that. Sadly as I get back home the same symptoms come back and I have to drive back slowly.

I pull codes and got 7
1. P0016
2. P0700
3. P1776
4. P0841
Then they kinda repeat themselves all but one
5. P0016
6. P0700
7. P0841

Anyways I ordered a new crankshaft position sensor. A new TPS sensor. And lastly crown OPDA that comes with the cam sensor.
Do you guys think that will fix it?

Or is my transmission going bad or maybe PCM?

Click to expand...

Don't throw the parts cannon at it. That gets unnecessarily costly.

finsfan07 said:

Hey for sure I'll give you a call after I install the parts I ordered on the off chance.. the new OPDA brand is crown Auto (still on the way to my House). What's currently in it I believe is the original.

What's makes you think it's the pcm and not the transmission tho.

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The 2005 and 2006 TJ's used a much different PCM. They operated on a different communication bus and are more prone to failing. I'm not sure if it's solder cracking or whatever it might be, but they love to fail. Lucky I got an '03. Another big difference is that on the last two years of the TJ, the PCM wasn't just an ECM. It was an integrated ECM and TCM in one (so a PCM). So on those newer rigs, the TCM failure = PCM failure.

Dr. Internet said:

Don't be sad about your Jeep. You are driving a 19 year old vehicle on the highway and expect like-new performance. You can get it, but you have to remember that stuff wears out and must be maintained. Jeeps (and everyother vehicle) are not designed to run for 20 years. When I was in that biz, the design goal was 10 years maximum. Now, you not only own a 19 year old vehicle that needs some love, but you own a Jeep that most males (and quite a few females) in America would love to own. So cheer up. It's fixable, it just takes a little lot of time and a pile of money.

Click to expand...

Fixed it for ya...

finsfan07 said:

No you right and I wouldn't if they were expensive, but with other cars sometimes I would get sensors that commonly fail and leave them in the vehicle. If I switch them and it doesn't fix the issue I'll keep the old sensors as back up

Click to expand...

What brand are the sensors?

Dr. Internet said:

Don't be sad about your Jeep. You are driving a 19 year old vehicle on the highway and expect like-new performance. You can get it, but you have to remember that stuff wears out and must be maintained. Jeeps (and everyother vehicle) are not designed to run for 20 years. When I was in that biz, the design goal was 10 years maximum. Now, you not only own a 19 year old vehicle that needs some love, but you own a Jeep that most males (and quite a few females) in America would love to own. So cheer up. It's fixable, it just takes a little time and money.

Click to expand...

Give me your phone number. Next time I'm depressed I'll call you!
Did you ever consider becoming a catholic priest? I'd come to you for confession!

nitrofalcon said:

Give me your phone number. Next time I'm depressed I'll call you!
Did you ever consider becoming a catholic priest? I'd come to you for confession!

Click to expand...

His message was very thoughtful

MikeE024 said:

His message was very thoughtful

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Agreed. My comments were a compliment.

nitrofalcon said:

Agreed. My comments were a compliment.

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I viewed your post as a compliment; I wanted to say more, but I feared it would have detracted from his post.

Messages like his would do wonders for the world when folks need encouragement and perspective during hard times. My close Navy bud might be alive today if he read a thoughtful message like this before he ended it.

finsfan07 said:

So recently I posted that my automatic 2005 Jeep Wrangler TJ Rubicon 4.0 catalytic converter were clogged (my mechanic shop diagnose it)

Click to expand...

How is this diagnosed on our vehicles? I occasionally get an error code about a slow o2 sensor even though it is brand new NGK. I've put my endoscope into the O2 sensor ports and I see the structure, no broken parts, but I am only looking at the ends.

These things used to be a lot cheaper but with them now at $600 or more it's not something I want to swap just on a hunch.

Thanks, Andy